Final answer:
The statement is true; an EMG measures muscle tension and is used to measure tension and stress. EMG uses electrical readings from muscle tissue to indicate the level of muscle tension and can detect conditions related to muscle health.
Step-by-step explanation:
The statement that an EMG measures muscle tension and is used to measure tension and stress is True. An Electromyography (EMG) is a diagnostic procedure that assesses the health of muscles and the nerve cells that control them. This technique involves using electrical readings generated by muscle tissue to indicate the level of muscle tension and can therefore be used to measure physical stress on muscles.
Muscle tension is the force generated by the contraction of the muscle, which can occur during both isotonic and isometric contractions. When a muscle contracts, it shortens along its longitudinal axis and expands across the transverse axis, leading to vibrations at the surface, which can be detected by an EMG. Monitoring these vibrations and tensions can be indicative of muscle health and neuromuscular conditions.
Biofeedback is another technique related to muscle tension measurement and can be used to help individuals gain voluntary control over involuntary bodily processes, including muscle tension due to stress.